drm/nouveau: Add support for I2C hardware monitoring devices.
Signed-off-by: Francisco Jerez <currojerez@riseup.net>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
diff --git a/drivers/gpu/drm/nouveau/nouveau_temp.c b/drivers/gpu/drm/nouveau/nouveau_temp.c
index 2f7785c..f9eda87 100644
--- a/drivers/gpu/drm/nouveau/nouveau_temp.c
+++ b/drivers/gpu/drm/nouveau/nouveau_temp.c
@@ -235,6 +235,48 @@
temps->fan_boost = 40;
}
+static bool
+probe_monitoring_device(struct nouveau_i2c_chan *i2c,
+ struct i2c_board_info *info)
+{
+ char modalias[16] = "i2c:";
+ struct i2c_client *client;
+
+ strlcat(modalias, info->type, sizeof(modalias));
+ request_module(modalias);
+
+ client = i2c_new_device(&i2c->adapter, info);
+ if (!client)
+ return false;
+
+ if (!client->driver || client->driver->detect(client, info)) {
+ i2c_unregister_device(client);
+ return false;
+ }
+
+ return true;
+}
+
+static void
+nouveau_temp_probe_i2c(struct drm_device *dev)
+{
+ struct drm_nouveau_private *dev_priv = dev->dev_private;
+ struct dcb_table *dcb = &dev_priv->vbios.dcb;
+ struct i2c_board_info info[] = {
+ { I2C_BOARD_INFO("w83l785ts", 0x2d) },
+ { I2C_BOARD_INFO("w83781d", 0x2d) },
+ { I2C_BOARD_INFO("f75375", 0x2e) },
+ { I2C_BOARD_INFO("adt7473", 0x2e) },
+ { I2C_BOARD_INFO("lm99", 0x4c) },
+ { }
+ };
+ int idx = (dcb->version >= 0x40 ?
+ dcb->i2c_default_indices & 0xf : 2);
+
+ nouveau_i2c_identify(dev, "monitoring device", info,
+ probe_monitoring_device, idx);
+}
+
void
nouveau_temp_init(struct drm_device *dev)
{
@@ -253,11 +295,11 @@
temp = ROMPTR(bios, P.data[16]);
else
NV_WARN(dev, "unknown temp for BIT P %d\n", P.version);
- } else {
- NV_WARN(dev, "BMP entry unknown for temperature table.\n");
+
+ nouveau_temp_vbios_parse(dev, temp);
}
- nouveau_temp_vbios_parse(dev, temp);
+ nouveau_temp_probe_i2c(dev);
}
void